Ap MSN.com Hotmail,Outlex NHomel portal x CAssuming That All The Nu x C Chegg Ar

Question

Ap MSN.com Hotmail,Outlex NHomel portal x CAssuming That All The Nu x C Chegg Arkansas State University, X /ibiscms/mod/ibis/view.php?id-2060904 WWW sapling learning.com Sapling Learning 2133 SUMMERS rk #2: C d Ti My Assignment 9/7/2015 11:55 PM A 8 00 9/3/2015, 09:56 AM Gradebook Attempts Period Table he sport of pride th bility to part peed playe billiards, event organizers often remove one of the rails on a pooltable to allow players to measure the speed of their break shots (the opening shot of a game in which the player strikes a ball with his pool cue). With the rail removed, a ball can fly off the table, Asthe only participant with a physics background, they have placed you in charge of determining the speed of the players' break shots 0.790 m 3.65 he p table 0.790 he fl The p of the tape ch that 0 igned the edge of the table (as shown) The winner of the competition wants to know if he has broken the world record for the break shot of 32 mph (about 14.3 m/s). If the winners ball landed a distance 3.65 m from the table edge, calculate his break shot speed. 97 At what speed did his pool ball hit the ground O Previ Check Answer ON Up & Vi Hint a p to Resources O Assignment Information 8/24/2015 12:00 AM Availabl 7/2015 11:55 PM Due Di Late submissions: Allowed points possible deducted 09/14/2015 11:55 PM Possibl Grade Category: Homework Description: Polici You can check your answers You can view solutions when you complete or You can keep trying to answer each question until you get it right or give up. of the points available to each answer in your question for each incorrect Textbook O Help with This Topic OpenStax Physics 3.4 Projectile If you have a suggestion for a resource for this 9/4/2015

Explanation / Answer

Solution:

Given:

height of the table = h = 0.790 m

The vertical height h = 1/2gt2 ;

This does not depend on the horizontal velocity Vo

Solving for t, t = sqrt (2h/g) = 2(0.790)/9.8

                                           = 0.402 s

Range of the projectile = X = 3.65m

Since Range = horizontal distance = horizontal velocity x time

Vo= X/t = 3.65 / 0.402

             = 9.1 m/s

If the break record speed of 14.3m/s is reached by th ewinner, the range will have to be (14.3)(0.402) = 5.75m instead of 3.65m

b) Vertical velocity on reaching the ground = Vy = 0-9.8 *t = -9.8 * 0.402 = -3.94 m/s

     Vo= horizontal velocity = 9.1 m/s

Final velocity on reaching the ground = sqrt (Vo2 + Vy2) = sqrt (9.1 2+3.942)

                                                                                           = 9.92 m/s

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.